rs985865838

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_001005271.3(CHD3):​c.121G>A​(p.Glu41Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000159 in 1,260,728 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 27)
Exomes 𝑓: 0.0000016 ( 0 hom. )

Consequence

CHD3
NM_001005271.3 missense

Scores

2
2
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.33
Variant links:
Genes affected
CHD3 (HGNC:1918): (chromodomain helicase DNA binding protein 3) This gene encodes a member of the CHD family of proteins which are characterized by the presence of chromo (chromatin organization modifier) domains and SNF2-related helicase/ATPase domains. This protein is one of the components of a histone deacetylase complex referred to as the Mi-2/NuRD complex which participates in the remodeling of chromatin by deacetylating histones. Chromatin remodeling is essential for many processes including transcription. Autoantibodies against this protein are found in a subset of patients with dermatomyositis. Three alternatively spliced transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
NAA38 (HGNC:28212): (N-alpha-acetyltransferase 38, NatC auxiliary subunit) Involved in negative regulation of apoptotic process. Located in cytoplasm and nucleoplasm. Part of NatC complex. Colocalizes with polysome. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the CHD3 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 48 curated pathogenic missense variants (we use a threshold of 10). The gene has 39 curated benign missense variants. Gene score misZ: 6.1518 (above the threshold of 3.09). Trascript score misZ: 8.0663 (above the threshold of 3.09). GenCC associations: The gene is linked to Snijders Blok-Campeau syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.1534529).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CHD3NM_001005271.3 linkc.121G>A p.Glu41Lys missense_variant Exon 1 of 40 NP_001005271.2 Q12873-3Q2TAZ1B3KWV4
CHD3XM_005256427.5 linkc.121G>A p.Glu41Lys missense_variant Exon 1 of 40 XP_005256484.1
CHD3XM_006721423.4 linkc.121G>A p.Glu41Lys missense_variant Exon 1 of 40 XP_006721486.1 A0A8V8TR54

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CHD3ENST00000700753.1 linkc.121G>A p.Glu41Lys missense_variant Exon 1 of 40 ENSP00000515165.1 A0A8V8TR54
CHD3ENST00000380358.9 linkc.121G>A p.Glu41Lys missense_variant Exon 1 of 40 2 ENSP00000369716.4 Q12873-3
NAA38ENST00000576861.5 linkc.-167+238C>T intron_variant Intron 1 of 4 3 ENSP00000461545.1 I3L4V0
NAA38ENST00000570555.1 linkn.74+238C>T intron_variant Intron 1 of 4 5

Frequencies

GnomAD3 genomes
Cov.:
27
GnomAD4 exome
AF:
0.00000159
AC:
2
AN:
1260728
Hom.:
0
Cov.:
32
AF XY:
0.00000162
AC XY:
1
AN XY:
618084
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000199
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
27

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
May 23, 2023
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.051
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
19
DANN
Benign
0.95
Eigen
Benign
-0.86
Eigen_PC
Benign
-0.85
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.59
T
M_CAP
Pathogenic
0.98
D
MetaRNN
Benign
0.15
T
MetaSVM
Benign
-0.48
T
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-0.18
N
REVEL
Uncertain
0.29
Sift
Pathogenic
0.0
D
Sift4G
Benign
0.77
T
Vest4
0.082
MutPred
0.10
Gain of ubiquitination at E41 (P = 0.0114);
MVP
0.42
MPC
0.78
ClinPred
0.22
T
gMVP
0.076

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-7788245; API